-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 FQKylmNeFgT7naa50dKWS9yQNX157XSkYMyWs77InV29XrEs1jqOtUXAF64lb3Xz
 JalkdREBU4f4LktnaRKAoA==

<SEC-DOCUMENT>0001127602-10-014931.txt : 20100519
<SEC-HEADER>0001127602-10-014931.hdr.sgml : 20100519
<ACCEPTANCE-DATETIME>20100519175606
ACCESSION NUMBER:		0001127602-10-014931
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100519
FILED AS OF DATE:		20100519
DATE AS OF CHANGE:		20100519

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DUFF PATRICK
		CENTRAL INDEX KEY:			0001257330

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12139
		FILM NUMBER:		10846180

	MAIL ADDRESS:	
		STREET 1:		C/O HERCULES INC
		STREET 2:		1313 NORTH MARKET STREET
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19894-0001

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SEALED AIR CORP/DE
		CENTRAL INDEX KEY:			0001012100
		STANDARD INDUSTRIAL CLASSIFICATION:	CONVERTED PAPER & PAPERBOARD PRODS (NO CONTAINERS/BOXES) [2670]
		IRS NUMBER:				650654331
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		200 RIVERFRONT BOULEVARD
		CITY:			ELMWOOD PARK
		STATE:			NJ
		ZIP:			07407-1033
		BUSINESS PHONE:		201-791-7600

	MAIL ADDRESS:	
		STREET 1:		200 RIVERFRONT BOULEVARD
		CITY:			ELMWOOD PARK
		STATE:			NJ
		ZIP:			07407-1033

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WR GRACE & CO/DE
		DATE OF NAME CHANGE:	19961015

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GRACE HOLDING INC
		DATE OF NAME CHANGE:	19960805
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-05-19</periodOfReport>

    <issuer>
        <issuerCik>0001012100</issuerCik>
        <issuerName>SEALED AIR CORP/DE</issuerName>
        <issuerTradingSymbol>SEE</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001257330</rptOwnerCik>
            <rptOwnerName>DUFF PATRICK</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O SEALED AIR CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>200 RIVERFRONT BOULEVARD</rptOwnerStreet2>
            <rptOwnerCity>ELMWOOD PARK</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07407</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>50000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2010-05-19</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2500</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2500</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">1 - 1</footnote>
        <footnote id="F2">The units are to be settled in shares of Common Stock (with certain exceptions specified in the Corporation's Deferred Compensation Plan for Directors) following the reporting person's retirement from the Board of Directors.</footnote>
        <footnote id="F3">Award made under 2002 Stock Plan for Non-Employee Directors of Sealed Air Corporation.  The Reporting Person has elected to defer receipt of the retainer payable in shares of common stock of Sealed Air Corporation (&quot;Common Stock&quot;) under Sealed Air Corporation's Deferred Compensation Plan for Directors.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Patrick Duff</signatureName>
        <signatureDate>2010-05-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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